v10.3 Faster high-throughput capture and Windows compatibility fixes See what's new

HTTP Debugger Latest Changes

See what has changed across HTTP Debugger releases.

v10.3

Latest

Faster high-throughput capture and Windows compatibility fixes

Download v10.3

Improvements

  • Faster capture with near-zero overhead when the app is closed.
  • Higher throughput under heavy traffic.
  • Smoother UI under heavy traffic.
  • Updated network components for better HTTP/2, SSL and WebSocket compatibility.

Other Changes

  • Improved installer upgrade metadata and major upgrade handling.

Bug Fixes

  • Fixed several issues that could stall the UI under heavy load.
  • Fixed HTTP/1 and HTTP/2 streaming for large and chunked content.
  • Fixed preservation of original compressed content headers and raw content size information.
  • Fixed WebSocket frame size reporting to include the original wire frame size.
  • Fixed capture and SSL compatibility issues, including Mullvad Browser certificate validation.

v10.2

Fix layout switching, pane, and high-DPI display issues

Improvements

  • Improved compatibility with VPN providers.
  • Improved the display of filtering rules.

Other Changes

  • Renamed the SSE pane to Server-Sent Events.

Bug Fixes

  • Fixed toolbar button captions and sizing being clipped on high-DPI displays, such as at 150% scaling on Windows 11.
  • Fixed a crash when switching to the Right layout or re-selecting the current layout.
  • Fixed crashes when moving between auto-hidden side panels in the Right layout.
  • Fixed a crash when adding a new rule right after deleting one, and fixed focus and selection in the rules grid after deleting or refreshing a rule.
  • Fixed switching between the Bottom and Right layouts: open, closed and hidden panes are now preserved, along with the selected traffic rows.
  • Fixed layout redraw and update artifacts after changing the pane layout; the Summary keeps showing data for the selected request.
  • Fixed the Summary and Structure panes not displaying correctly after switching to the Right layout.

v10.1

Add gRPC, WebSocket, and Server-Sent Events support

Improvements

  • The application interface was significantly redesigned and improved.
  • Added support for displaying gRPC, WebSocket and Server-Sent Events traffic.
  • Added support for WebSocket over HTTP/2.
  • Added a dedicated Messages / Events pane for viewing WebSocket frames, SSE events and gRPC messages.
  • Added HTTP/2 support for Submitter.
  • Improved HTTP/2 details, summaries, filtering and traffic type detection.

Other Changes

  • Added a Copy Cell Text command for the main grid.
  • Added refresh and highlighting commands for performance charts.
  • Improved import and export of sessions and application settings.

Bug Fixes

  • Fixed several HTTP/2, gRPC, SSE and WebSocket capture and display issues.
  • Fixed Auto-Reply and HTTP Modifier support for the HTTP/2 protocol.
  • Fixed timing display for HTTP/2 traffic.
  • Fixed SSE event hangups and removed the old limit of 512 SSE messages.
  • Fixed issues with compressed WebSocket frames, message size calculation and partial data display.
  • Fixed crashes, memory warning text and trial/certificate message bar behavior.

v10.0

Add HTTP/2 capture and decoding

Improvements

  • Added support for HTTP/2.
  • HTTP/2 traffic is now captured and displayed correctly in the UI.
  • Improved TLS/SSL compatibility, including ALPN negotiation and Client Certificates support.
  • Improved handling of modern HTTP traffic, including large headers, compressed content and protocol upgrade scenarios.

Other Changes

  • Improved compatibility with Windows 11 and modern security software.
  • Improved the stability and performance of traffic interception for TCP and UDP connections.

Bug Fixes

  • Fixed various issues related to TLS/SSL filtering, certificate handling and connection compatibility.
  • Fixed various compatibility, stability and performance issues in the filtering engine.

Previous Updates »